Fix POSIX ACL permission check

After commit 3567866: "RCUify freeing acls, let check_acl() go ahead in RCU mode if acl is cached" posix_acl_permission is being called with an unsupported flag and the permission check fails. This patch fixes the issue. Signed-off-by: Ari Savolainen <[email protected]> Signed-off-by: Al Viro <[email protected]>
josf · Aug 7, 2011 · 206b1d0 · 206b1d0
1 parent c2f340a
commit 206b1d0
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/fs/namei.c b/fs/namei.c
@@ -186,7 +186,7 @@ static int check_acl(struct inode *inode, int mask)
 		/* no ->get_acl() calls in RCU mode... */
 		if (acl == ACL_NOT_CACHED)
 			return -ECHILD;
-	        return posix_acl_permission(inode, acl, mask);
+	        return posix_acl_permission(inode, acl, mask & ~MAY_NOT_BLOCK);
 	}
 
 	acl = get_cached_acl(inode, ACL_TYPE_ACCESS);